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Rating depth structure for largemouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
1,450-acre reservoir near Quakertown. A Bucks County state-park lake near Philadelphia with muskie, hybrid stripers and quality largemouth. The lake tops out around 90 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. The season-by-season read for each species follows, from the map's own numbers.
Drawn out, this is 1,465 acres of water rimmed by 24.9 miles of bank. That shoreline is heavily fingered (development index 4.6) — bays, points and pockets everywhere, which multiplies the fishable edge. 57% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Figure 6.8 mi of water from one end to the other, 2.1 mi at the beam. You'll find it in Bucks County. For a second option, Spruce Run Reservoir lies 20 mi northeast.
Spring puts largemouth bass in skinny water — 2 to 10 ft is the zone. Warm water sends them out to 8 to 20 ft; cold water stacks them in 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 6 ft, rated prime for spring largemouth bass. Plan around early morning and the evening in the warm months. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (6 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (6 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | open water | Blade bait, Jigging spoon |
Start shallow in spring: muskellunge sit in 3 to 12 ft that time of year. Warm water sends them out to 8 to 25 ft; cold water stacks them in 15 to 35 ft. Top water on the chart: Shallow bay flat, a weed flat in the 6 ft range, prime in spring. Fish it in the evening and early morning and you'll meet the bite. Throw a double-10 bucktail or a topwater (walk-the-dog / creeper) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (6 ft) | Smaller bucktail (#8 blades), 6" glide bait |
| Summer | 8 to 25 ft | dusk & dawn | Main-lake point (23 ft) | Double-10 bucktail, Topwater (walk-the-dog / creeper) |
| Fall | 8 to 30 ft | midday & dusk | Main-lake point (23 ft) | Big rubber (Bull Dawg style), 10"+ glide bait |
| Winter | 15 to 35 ft | midday | Deep basin (77 ft) | Large rubber, crawled slow |
Spring walleye on Lake Nockamixon hold shallow, usually 4 to 15 ft. By summer they slide out to 15 to 35 ft, and by winter most fish are in 20 to 40 ft. The chart's best answer is Tohickon Creek inflow — inflow / creek mouth, 8 ft, prime for spring. Prime time lands in the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Tohickon Creek inflow (8 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Main-lake point (23 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Main-lake point (23 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Main-lake point (23 ft) | Jigging spoon + minnow head, Rattle bait |
In spring, white bass & hybrids run shallow here, mostly 3 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 20 to 40 ft for winter. Spring white bass & hybrids concentrate at Tohickon Creek inflow, a prime-rated inflow / creek mouth around 8 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a jigging spoon or a topwater (when schooling) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | midday & dawn | Tohickon Creek inflow (8 ft) | Rooster tail / inline spinner, Curly-tail jig (white/chartreuse) |
| Summer | 10 to 30 ft | dawn & dusk | Main-lake point (23 ft) | Jigging spoon, Topwater (when schooling) |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (23 ft) | Small blade bait, Jigging spoon |
| Winter | 20 to 40 ft | midday | Deep basin (77 ft) | Jigging spoon, Blade bait (vertical) |
Spring puts channel catfish in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 8 to 25 ft; cold water stacks them in 20 to 40 ft. Tohickon Creek inflow is the standout, an inflow / creek mouth at roughly 8 ft, rated prime for spring channel catfish. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Tohickon Creek inflow (8 ft) | |
| Summer | 8 to 25 ft | night & dusk | Tohickon Creek inflow (8 ft) | |
| Fall | 10 to 30 ft | dusk | Deep basin (77 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (77 ft) |
In spring, crappie run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 10 to 25 ft before dropping to 15 to 35 ft for winter. Spring crappie concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a jig trolled/spider-rigged or a small crankbait (trolled) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Marina / dock area (10 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Marina / dock area (10 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Deep basin (77 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Lake Nockamixon carries 10 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 77 ft down.
Season dates, license requirements, and size and bag limits for Pennsylvania waters are set by the Pennsylvania Fish & Boat Commission — and special regulations can apply to Lake Nockamixon specifically, so confirm the current rules before you fish.
Check the official Pennsylvania fishing regulations →
Lake Nockamixon is about 90 ft (27 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target largemouth bass, muskellunge, walleye, white bass & hybrids, channel catfish, crappie on Lake Nockamixon.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for largemouth bass in spring. The interactive chart above rates every spot for each species and season.
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Lake Nockamixon is regulated by the Pennsylvania Fish & Boat Commission. Check the official Pennsylvania regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Spruce Run Reservoir 20 mi, NJ · Round Valley Reservoir 24 mi, NJ · Furnace Lake 26 mi, NJ · Delaware Lake 33 mi, NJ · Mercer County Park Lake 34 mi, NJ · Beltzville Lake 34 mi · Raritan River 35 mi, NJ · Ghost Lake 37 mi, NJ · Cedar Lake 38 mi, NJ · Schuylkill River 38 mi, NJ/DE · Budd Lake 38 mi, NJ · Deer Park Pond 38 mi, NJ
See how Lake Nockamixon stacks up: best largemouth bass lakes in Pennsylvania · best walleye lakes in Pennsylvania · best crappie lakes in Pennsylvania · best channel catfish lakes in Pennsylvania
Browse all Pennsylvania fishing maps or see every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.